Electric Circuits (EELE 2312)

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Presentation transcript:

Electric Circuits (EELE 2312) Chapter 2 Some Circuit Simplification Techniques Dr. Basil Hamed

2.1 Combining Resistors in Series And Parallel Resistors in Parallel Basil Hamed

2.1 Resistors in Series When just two circuit elements connect at a single node, they are said to be in series. Series-connected circuit elements carry the same current.

2.1 Resistors in Parallel When two elements connect at a single node pair, they are said to be in parallel. Parallel-connected circuit elements have the same voltage across their terminals.

2.1 Resistors in Parallel Special Case

Example 2.1 Applying Series-Parallel Simplification Find is, i1, and i2 in the circuit shown.

2.2 Voltage and Current Dividers The Voltage-Divider Circuit The Current-Divider Circuit Basil Hamed

2.2 The Voltage-Divider Circuit In electronic circuits, developing more than one voltage level from a single voltage supply is necessary. The voltage-divider circuit offers such possibility.

Example 2.2 Analyzing the Voltage-Divider Circuit The resistors used in the voltage-divider circuit shown have a tolerance of ±10%. Find the maximum and minimum value of the output voltage.

2.2 The Current-Divider Circuit The current-divider circuit is used to divide the current between two resistors connected in parallel

Example 2.3 Analyzing the Current-Divider Circuit Find the power dissipated in the 6Ω resistor shown.

2.3 Source Transformation

Example 2.4 Using Source Transformation to Solve a Circuit Find the power associated with the 6 V source. State whether the 6 V source is absorbing or delivering power calculated in (a).

2.3 Source Transformation

Example 2.5 Using Special Source Transformation Techniques Use the source transformation to find the voltage vo in the circuit shown. Find the power dissipated in the 250 V source. Find the power developed by the 8 A current source.

2.4 Superposition

Example 2.6 Using Superposition to Solve a Circuit Use the principle of superposition to find vo in the circuit shown.

End of Chapter Two